1. National Kidney Foundation. K/DOQI clinical practice guidelines for peritoneal dialysis adequacy: update;Am. J. Kidney Dis.,2001
2. http://www.orthoclinical.com/Support/chemImmDocs.aspx Vitros® Chemistry System. Instructions for use Vitros Chemistry Products BUN/UREA Slides. Pub. No. MP2-9_EN.
3. http://www.orthoclinical.com/Support/chemImmDocs.aspx Vitros® Chemistry System. Instructions for use Vitros Chemistry Products CREA Slides. Pub. No. MP2-49_EN.